CN109890607A - Gas barrier film and device comprising it - Google Patents

Gas barrier film and device comprising it Download PDF

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Publication number
CN109890607A
CN109890607A CN201780065240.1A CN201780065240A CN109890607A CN 109890607 A CN109890607 A CN 109890607A CN 201780065240 A CN201780065240 A CN 201780065240A CN 109890607 A CN109890607 A CN 109890607A
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layer
inorganic thin
thin film
gas barrier
film layer
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大关美保
山下恭弘
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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40Oxides
    • C23C16/401Oxides containing silicon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/048Forming gas barrier coatings
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/06Coating with compositions not containing macromolecular substances
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/02Pretreatment of the material to be coated
    • C23C16/0272Deposition of sub-layers, e.g. to promote the adhesion of the main coating
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/32Carbides
    • C23C16/325Silicon carbide
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/42Silicides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/50Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/54Apparatus specially adapted for continuous coating
    • C23C16/545Apparatus specially adapted for continuous coating for coating elongated substrates
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/02Details
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/02Details
    • H05B33/04Sealing arrangements, e.g. against humidity
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D201/00Coating compositions based on unspecified macromolecular compounds
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic

Abstract

It is an object of the invention to assign light resistance to the gas barrier film for the purpose of damp proof for flexible display, to realize that comparison gas barrier film more leans on the inhibition of the UV deterioration of the device inside of lower layer and/or the inhibition of the UV deterioration to gas barrier film itself.The present invention provides gas barrier film, it successively has the substrate layer including at least flexible substrate, inorganic thin film layer, the organic layer containing ultraviolet absorbing agent, wherein, aforementioned inorganic film layer contains silicon atom, oxygen atom and carbon atom, and the light transmittance at the 380nm of These gases barrier film is 20% or less.

Description

Gas barrier film and device comprising it
Technical field
The present invention relates to gas barrier film and include its device.
Background technique
In the past, the gas barrier film for organic el display etc. is proposed.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 8-187825 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2006-297737 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2011-194766 bulletin
Patent document 4: Japanese Unexamined Patent Publication 2012-6154 bulletin
Patent document 5: Japanese Unexamined Patent Publication 2013-154584 bulletin
Patent document 6: Japanese Unexamined Patent Publication 2012-6154 bulletin
Patent document 7: Japanese Unexamined Patent Publication 2014-189585 bulletin
Patent document 8: Japanese Unexamined Patent Publication 2014-226894 bulletin
Summary of the invention
Problems to be solved by the invention
However, the light resistance of These gases barrier film is not satisfactory.Therefore, the present invention is to for flexible display The gas barrier film for the purpose of damp proof of equal devices assigns light resistance, to realize that comparison gas barrier film more leans on lower layer Device inside UV deterioration inhibition and/or inhibition to the UV of gas barrier film deterioration itself.
Means for solving the problems
Present inventor gas barrier film has been repeated in detail research to solve aforementioned problems, knot Fruit completes the present invention.
That is, the present invention includes preferred embodiment below.
[1] gas barrier film successively has the substrate layer including at least flexible substrate, inorganic thin film layer, containing purple The organic layer of ultraviolet absorbers, wherein
Aforementioned inorganic film layer contains silicon atom, oxygen atom and carbon atom,
Light transmittance at the 380nm of These gases barrier film is 20% or less.
[2] gas barrier film as described in [1], wherein be in opposite with the organic layer side containing ultraviolet absorbing agent The surface of the substrate layer of side has other inorganic thin film layer.
[3] gas barrier film as described in [1] or [2], wherein in substrate layer, at least one table of flexible substrate Face has organic layer A.
[4] gas barrier film as described in any one of [1]~[3], wherein organic layer A be selected from by slippery layer and Layer in the group of flatness layer composition.
[5] gas barrier film as described in any one of [1]~[4], wherein the phase for including in aforementioned inorganic film layer The atomicity of carbon atom for the sum of silicon atom, oxygen atom and carbon atom is than on the thickness direction of inorganic thin film layer Continuously change.
[6] gas barrier film as described in any one of [1]~[5], wherein for aforementioned inorganic film layer, The average atom number ratio of the carbon atom (C) for silicon atom (Si) in inorganic thin film layer is in the range of formula (1).
0.10 < C/Si < 0.50 (1)
[7] gas barrier film as described in any one of [1]~[6], wherein respectively indicating aforementioned inorganic film layer Film thickness direction the distance away from aforementioned inorganic thin-film surface, opposite with include in the aforementioned inorganic film layer at each distance The atomicity of silicon for the sum of silicon atom, oxygen atom and carbon atom than, oxygen atomicity than between the atomicity ratio of, carbon The silicon distribution curve of relationship, in oxygen distribution curve and carbon profile, meet condition (i) and (ii).
(i) atomicity of silicon is than the atomicity of the atomicity when carbon of, oxygen than the film thickness direction in aforementioned inorganic film layer 90% or more region in meet formula (5) expression condition,
Atomicity ratio > silicon atomicity ratio > carbon atomicity ratio (5) of oxygen
(ii) aforementioned carbon profile has at least one extreme value.
[8] device, comprising appointing in [1]~[7] in such a way that the coat containing ultraviolet absorbing agent becomes outermost Gas barrier film described in one.
[9] gas barrier film as described in any one of [1]~[7], wherein utilize the ATR method of infrared spectrum measurement When being measured to the surface of aforementioned inorganic film layer, in 950~1050cm-1Locate existing peak intensity (I1), with 1240~ 1290cm-1Locate existing peak intensity (I2) intensity ratio in the range of formula (2).
0.01≤I2/I1< 0.05 (2)
[10] gas barrier film as described in [1]~any one of [7] and [9], wherein utilize infrared spectrum measurement When ATR method is measured aforementioned inorganic thin-film surface, in 950~1050cm-1Locate existing peak intensity (I1) and 770 ~830cm-1Locate existing peak intensity (I3) intensity ratio in the range of formula (3).
0.25≤I3/I1≤0.50 (3)
[11] gas barrier film as described in any one of [1]~[7], [9] and [10], wherein utilize infrared spectroscopy When the ATR method of measurement is measured aforementioned inorganic thin-film surface, in 770~830cm-1Locate existing peak intensity (I3) and In 870~910cm-1Locate existing peak intensity (I4) intensity ratio in the range of formula (4).
0.70≤I4/I3< 1.00 (4)
The effect of invention
Gas barrier film of the invention has sufficient light resistance and bendability, therefore can be suitably used for device.
Detailed description of the invention
[Fig. 1] is the schematic diagram indicated for manufacturing the manufacturing device of the gas barrier film in embodiment.
Specific embodiment
Gas barrier film of the invention successively has at least and has the substrate layer of flexible substrate, inorganic thin film layer, contains The coat of ultraviolet absorbing agent, aforementioned inorganic film layer contain silicon atom, oxygen atom and carbon atom, These gases barrier film 380nm at light transmittance be 20% or less.
(substrate layer)
Substrate layer at least has flexible substrate.Substrate layer can be single layer, or multilayer.When substrate layer is single layer, Preferred substrates layer is made of flexible substrate.When substrate layer is multilayer, preferred substrates layer at least has flexible substrate and substrate layer Display is flexible, and the face that the substrate layer of inorganic thin film layer is more preferably laminated is flexible substrate, further preferred aforenoted multi-layer respectively by Flexible substrate is constituted.
(flexible substrate)
As flexible substrate, can be used includes resin film of at least one kind of resin as resin component, preferably colorless and transparent Resin film.As the resin that can be used for resin film, such as polyethylene terephthalate (PET), poly- naphthalenedicarboxylic acid can be enumerated The polyester resin such as glycol ester (PEN);The polyolefin resins such as polyethylene (PE), polypropylene (PP), cyclic polyolefin;Polyamide resin Rouge;Polycarbonate resin;Polystyrene resin;Polyvinyl alcohol resin;Vinyl-vinyl acetate copolymer it is saponified;Poly- third Alkene nitrile resin;Acetal resin;Polyimide resin;Polythiaether (PES) as needed can also combine two or more in them. In these, according to the necessary characteristic such as the transparency, heat resistance, linear expansivity, preferably selected from polyester resin, polyolefin resin It uses, more preferably uses PET, PEN, cyclic polyolefin.
Flexible substrate can be non-stretched resin film, be also possible to benefit by known method (be uniaxially stretched, tentering formula by Secondary biaxial stretch-formed, tentering formula simultaneously biaxial drawing, tubular type simultaneously biaxial drawing etc.) along the direction of travel (side MD of resin base material To) and/or the direction (direction TD) that becomes right angle with the direction of travel of resin base material non-stretched resin base material is stretched Obtained from resin film.
The thickness of flexible substrate can be considered the manufacture of stable gas barrier film and suitably set.For example, from i.e. From the viewpoint of keeping the transmission that also can be carried out film in a vacuum such, preferably 5~500 μm, more preferably 10~200 μm, into One step is preferably 50~100 μm.Substrate layer be flexible substrate single layer when, the thickness of substrate layer as hereinbefore, preferably 5~ 500 μm, more preferably 10~200 μm, further preferably 50~100 μm.When substrate layer is multilayer, constituting includes flexible substrate The overall thickness of whole layers of substrate layer be preferably 5~500 μm, more preferably 10~200 μm, further preferably 50~100 μ m。
The layer for constituting flexible substrate can be the refraction of orthogonal 2 ingredient in the faces such as the phase difference film of λ/4, the phase difference film of λ/2 The mutually different phase difference film of rate.As the material of phase difference film, cellulose-based resin can be enumerated, polycarbonate-based resin, gathered Aromatic ester system resin, polyester based resin, acrylic resin, polysulfones system resin, polyether sulfone system resin, annular ethylene series resin, liquid Orientation cured layer of brilliant compound etc..Wherein, polycarbonate-based resin film due to inexpensive and can obtain uniform film and excellent Choosing uses.As film-forming method, solvent cast method, Precise Extrusion method of residual stress that film can be reduced etc. can be used, from uniform , it is preferable to use solvent cast method from the aspect of property.Drawing process is not particularly limited, and can apply can obtain uniform optical characteristics Roller between longitudinal uniaxial, stenter be laterally uniaxially stretched.
Phase difference Re (550) is preferably in the face at wavelength 550nm when the layer for constituting flexible substrate is λ/4 phase difference film 100~180nm, more preferably 110~170nm, further preferably 120~160nm.
Phase difference Re (550) is preferably in the face at wavelength 550nm when the layer for constituting flexible substrate is λ/2 phase difference film 220~320nm, more preferably 240~300nm, further preferably 250~280nm.
When flexible substrate is phase difference film, the inverse wave length point that phase difference value becomes larger with the wavelength of measurement light can be shown Property is dissipated, the positive wavelength dispersion characteristics that phase difference value becomes smaller with the wavelength of measurement light can also be shown, can also show phase difference value The hardly changed flat wavelength dispersing characteristic with the wavelength of measurement light.
Flexible substrate is when showing the phase difference film of inverse wave length dispersibility, by the phase meter of the af at wavelength lambda of flexible substrate When being shown as Re (λ), flexible substrate 10 can meet Re (450)/Re (550) < 1 and Re (650)/Re (550) > 1.
From can make light through or by light absorption it is such from the viewpoint of, flexible substrate is preferably colorless and transparent.It is more specific and Speech, total light transmittance is preferably 80% or more, and more preferably 85% or more.In addition, haze value (mist degree) be preferably 5% with Under, more preferably 3% hereinafter, further preferably 1% or less.
From the substrate that can be used for organic assembly, Energy device it is such from the viewpoint of, flexible substrate is preferably insulating properties, excellent Selecting resistivity is 106Ω cm or more.
From with from the viewpoint of the adaptation of inorganic thin film layer etc., the surface of flexible substrate can be implemented at surface-active Reason.As surface-active-treatment, can enumerate such as sided corona treatment, corona treatment, flame treatment, liquid scrubbing processing.
(organic layer A)
For improve with the adaptation of inorganic thin film layer and/or the purpose of flatness, substrate layer can flexible substrate extremely A few surface includes the organic layer A of identical or different type.Substrate layer is also the same when being multilayer, can constitute scratching for substrate layer Property substrate at least one surface on include identical or different type organic layer A.It, can as the example of preferred embodiment Enumerate following embodiments: the face (at least one face i.e. in the surface of substrate layer) that the substrate layer of inorganic thin film layer can be laminated is Flexible substrate, also, have on the surface that inorganic thin film layer at least one surface of the flexible substrate, more preferably is laminated organic Layer A.As the example of other preferred embodiments, can enumerate following embodiments: the two sides of substrate layer is flexible substrate, and There is organic layer A at least one surface of the flexible substrate, the surface of more preferable stacking inorganic thin film layer.The thickness of organic layer Preferably 0.5~10 μm of degree, more preferably 0.8~5 μm, further preferably 1~3 μm.As organic layer A, can enumerate for example Planarization layer, slippery layer and antiblocking layers.
When substrate layer includes organic layer A, substrate layer only can have organic layer on a surface of flexible substrate;Alternatively, There can be different types of organic layer on two surfaces of flexible substrate, such as there is flatness layer on a surface, another A surface has slippery layer.
Organic layer A can usually be formed in the following manner: will include light as ultraviolet light or electronic beam curing resin The monomer of curable resin and/or the resin combination of oligomer are coated in flexible substrate, are dried as needed, then Make its solidification by the irradiation of ultraviolet light or electron beam.Resin combination may include as needed solvent, Photoepolymerizationinitiater initiater, The additives such as thermal polymerization, antioxidant, ultraviolet absorbing agent, plasticizer.
As the example of the method based on coating, the various coating methods used in the past, such as spraying coating, rotation can be enumerated Painting, stick painting, curtain coating, infusion process, air doctor blade method, sliding coating, hopper coating, reverse roll coating, intaglio plate coating, extrusion The methods of coating.
Planarization layer can be solidified to form by UV curable resin being coated on substrate and makes it carry out UV.It can enumerate Such as UV curing type carbamate acrylate, UV solidified type epoxy base acrylate, UV curing type polyester third Alkene acid ester resin, UV solidified type epoxy resin, UV curing type polyalcohol acrylate resin etc..
As planarization layer, rigid body pendulum-type physical property test machine (such as A&D Company, Limited RPT- is utilized 3000W etc.) when evaluating the temperature change of the elasticity modulus on aforementioned planarization layer surface, the bullet on aforementioned planarization layer surface Property modulus reduce by 50% or more temperature be 150 DEG C or more be preferred.
UV curable resin containing inorganic particulate for example can be by being coated on substrate and making it to carry out UV by slippery layer It is solidified to form.As UV curable resin, such as UV curing type carbamate acrylate, UV curing type can be enumerated Epoxy acrylate resin, UV curing type polyester acrylate resin, UV solidified type epoxy resin, UV curing type polyalcohol third Alkene acid ester resin etc..As inorganic particulate, can enumerate for example silica, aluminium oxide, talcum, clay, calcium carbonate, magnesium carbonate, Barium sulfate, aluminium hydroxide, titanium dioxide, zirconium oxide etc..Organic layer A be slippery layer when, can easily to gas barrier film into The transmission of row roller.
(inorganic thin film layer)
From can play viewpoint and resistance to bend(ing) as the higher performance for preventing vapor from penetrating, manufacture is easy From the viewpoint of property and low manufacturing cost are such, inorganic thin film layer at least contains silicon atom (Si), oxygen atom (O) and carbon atom (C).As inorganic thin film layer, the layer of the known inorganic material with barrier properties for gases can be suitably utilized.Inorganic thin film layer can Think 1 layer, or multilayer.In addition, the process for forming inorganic thin film layer can carry out 1 time, can also carry out repeatedly.It carries out more It in the case where secondary, can carry out, can also carry out at different conditions under the same conditions.
The example of inorganic material is metal oxide, metal nitride, metal oxynitride, metal carbon oxide and packet Containing at least two kinds of mixtures in them.In addition, the layer as inorganic material, it is possible to use stacking 2 layers or more it is above-mentioned inorganic Multilayer film made of film layer.In addition, inorganic thin film layer can be set in one or two surface of substrate layer.
It, can be with general formula SiO for inorganic thin film layerαCβ[in formula, α and β are each independently represented less than 2 just Number.] indicate compound be principal component.Herein, so-called " for principal component ", refer to relative to constitute inorganic thin film layer all at For the quality divided, the content of the ingredient is 50 mass % or more, preferably 70 mass % or more, more preferable 90 mass % or more. Inorganic thin film layer can contain general formula SiOαCβThe a kind of compound indicated, can also contain general formula SiOαCβTwo or more change indicated Close object.More than one in α and β in aforementioned formula can be fixed value on the thickness direction of inorganic thin film layer, can also To change.
In addition, inorganic thin film layer contains element, such as hydrogen atom, nitrogen in addition to silicon atom, oxygen atom and carbon atom One or more of atom, boron atom, aluminium atom, phosphorus atoms, sulphur atom, fluorine atom and chlorine atom atom.
When inorganic thin film layer also contains hydrogen atom other than containing silicon atom, oxygen atom and carbon atom, preferably with general formula SiOαCβHγThe compound that [in formula, α and β are identical as aforementioned meaning, and γ represents less than 6 positive number] indicates is principal component.This place It calls " for principal component ", refers to for constituting the quality of whole components of inorganic thin film layer, the content of the ingredient is 50 matter Measure % or more, preferably 70 mass % or more, more preferable 90 mass % or more.Inorganic thin film layer can contain general formula SiO α CβHγIt indicates 1 kind of compound, general formula SiO α C can also be containedβHγTwo or more compound indicated.One in α, β and γ in aforementioned formula It can be fixed value on the thickness direction of aforementioned film layer more than a, can also change.
For inorganic thin film layer, indicate that the carbon for silicon atom (Si) in inorganic thin film layer is former by C/Si When the average atom number ratio of sub (C), from the viewpoint of improving compactness, reducing the defects of fine gap, crackle, C/Si's Range preferably satisfies formula (1).
0.10 < C/Si < 0.50 (1)
In addition, more preferably in the range of 0.15 0.45 < < C/Si, further preferably 0.20 < C/Si <'s 0.40 In range, particularly preferably in the range of 0.25 0.35 < < C/Si.
In addition, for inorganic thin film layer, by O/Si indicate in inorganic thin film layer for silicon atom (Si) Oxygen atom (O) average atom number ratio when, from the viewpoint of improving compactness, reducing the defects of fine gap, crackle, It is preferred that more preferably in the range of 1.55 1.85 < < O/Si, further preferably existing in the range of 1.50 1.90 < < O/Si In the range of 1.60 < O/Si < 1.80, particularly preferably in the range of 1.65 1.75 < < O/Si.
It should be noted that XPS depth can be carried out under the following conditions for average atom number ratio C/Si and O/Si Measurement is dissected, by the distribution curve of obtained silicon atom, oxygen atom and carbon atom, finds out each atom being averaged in a thickness direction Then atomic concentration calculates average atom number ratio C/Si and O/Si.
<measurement of XPS depth profiling>
Etch ion type: argon (Ar+)
Etch-rate (SiO2Heat oxide film scaled value): 0.05nm/sec
Etching interval (SiO2Scaled value): 10nm
X-ray photoelectron spectroscopy device: Thermo Fisher Scientific corporation, type designation " VG Theta Probe”
X-ray irradiation: monocrystalline is divided AlK α
The hot spot and its size of X-ray: the ellipse of 800 400 μm of μ ms
For inorganic thin film layer, when carrying out infrared spectrum measurement (ATR method) to inorganic thin film layer surface, 950 ~1050cm-1Locate existing peak intensity (I1) and in 1240~1290cm-1Locate existing peak intensity (I2) intensity ratio can be In the range of meeting formula (2).
0.01≤I2/I1< 0.05 (2)
Think the peak intensity ratio I calculated by infrared spectrum measurement (ATR method)2/I1Indicate inorganic thin film layer in relative to Si-CH for Si-O-Si3Relative scale.Think for the inorganic thin film layer for the relationship for meeting formula (2) expression, by It tails off in the defects of compactness height, fine gap, crackle, therefore, becomes that barrier properties for gases is excellent and excellent impact resistance Inorganic thin film layer.About peak intensity ratio I2/I1Range, from higher keep inorganic thin film layer compactness from the viewpoint of, Preferably 0.02≤I2/I1The range of < 0.04.
In addition, meeting aforementioned peak intensity ratio I2/I1Range in the case where, gas barrier film moderately becomes easy cunning It is dynamic, become to be less susceptible to adhesion.Conversely, I2/I1Greatly, it is poor there are bendability and become difficult to slide and incline when i.e. Si-C is excessive To.In addition, in I2/I1In the case that small, i.e. Si-C is very few, there is also the tendencies of bendability decline.
The infrared spectrum measurement on the surface of inorganic thin film layer can be by having the ATR attachment for having used germanium crystal as prism The Fourier transformation type infrared spectrophotometer (Japan's light splitting (strain) system, FT/IR-460Plus) of (PIKE MIRacle) is surveyed It is fixed.
For inorganic thin film layer, when carrying out infrared spectrum measurement (ATR method) to inorganic thin film layer surface, 950~ 1050cm-1Locate existing peak intensity (I1) and in 770~830cm-1Locate existing peak intensity (I3) intensity ratio can be in formula (3) In the range of.
0.25≤I3/I1≤0.50 (3)
Think the peak intensity ratio I calculated by infrared spectrum measurement (ATR method)3/I1Indicate inorganic thin film layer in relative to The relative scale of Si-C, Si-O for Si-O-Si etc..Think for meet formula (3) expression relationship inorganic thin film layer and Speech not only keeps high compactness, but also due to importing carbon, excellent as resistance to bend(ing) and excellent impact resistance nothing Machine film layer.About peak intensity ratio I3/I1Range, from keep inorganic thin film layer compactness and resistance to bend(ing) it is balanced Viewpoint consideration, preferably 0.25≤I3/I1≤ 0.50 range, more preferably 0.30≤I3/I1≤ 0.45 range.
For inorganic thin film layer, when carrying out infrared spectrum measurement (ATR method) to inorganic thin film layer surface, 770~ 830cm-1Locate existing peak intensity (I3) and in 870~910cm-1Locate existing peak intensity (I4) intensity ratio can be in formula (4) In range.
0.70≤I4/I3< 1.00 (4)
Think the peak intensity ratio I calculated by infrared spectrum measurement (ATR method)4/I3Indicate inorganic thin film layer in Si-C phase The mutual ratio in the peak of pass.Think not only to keep high-densit for the inorganic thin film layer for the relationship for meeting formula (4) expression Property, and due to importing carbon, excellent as resistance to bend(ing) and excellent impact resistance inorganic thin film layer.About peak intensity Degree compares I4/I3Range, from keep inorganic thin film layer compactness and resistance to bend(ing) harmony from the viewpoint of, preferably 0.70≤I4/I3The range of < 1.00, more preferably 0.80≤I4/I3The range of < 0.95.
From from the viewpoint of being not easily broken when inorganic thin film layer to be bent in this way, the thickness of inorganic thin film layer is preferably 5 ~3000nm.In addition, in the case where using glow discharge plasma, forming inorganic thin film layer using plasma CVD method, Aforementioned inorganic film layer is formed while discharging by substrate, therefore, more preferably 10~2000nm, further preferably 100~1000nm.
The averag density of inorganic thin film layer can be 1.8g/cm3More than.It should be noted that inorganic thin film layer is " average Density " can be found out in the following manner: by utilizing Rutherford backscattering method (Rutherford Backscattering Spectrometry:RBS atomicity, the atomicity of carbon, the atomicity of oxygen and the utilization hydrogen Forward scattering of the silicon) found out The atomicity for the hydrogen that (Hydrogen Forward scattering Spectrometry:HFS) is found out calculates measurement range The weight of inorganic thin film layer, divided by the volume (irradiated area of ion beam and the product of film thickness) of the inorganic thin film layer of measurement range. By making inorganic thin film layer that there is 1.8g/cm3Above density, inorganic thin film layer has compactness high and fine sky as a result, The defects of gap and crackle few structure.In addition, the feelings that inorganic thin film layer is formed by silicon atom, oxygen atom, carbon atom and hydrogen atom Under condition, the averag density of inorganic thin film layer is preferably smaller than 2.22g/cm3
It will indicate that the silicon at the distance away from the inorganic thin film layer surface and each distance of the film thickness direction of inorganic thin film layer is former The curve of relationship between the atomicity ratio of son is known as silicon distribution curve.Similarly, the inorganic thin away from this of film thickness direction will be indicated The curve of relationship between the atomicity ratio of oxygen atom at the distance of film surface and each distance is known as oxygen distribution curve.Separately It outside, will be between the atomicity ratio of the carbon atom at the distance and each distance away from the inorganic thin film layer surface that indicate film thickness direction The curve of relationship be known as carbon profile.Original of the atomicity of so-called silicon atom than the atomicity when carbon atom of, oxygen atom Subnumber ratio, refer to for the sum of the silicon atom, oxygen atom and the carbon atom that include in inorganic thin film layer away from inorganic thin The ratio of respective atomicity at each distance of film surface.
Inhibit from easy because preferably being wrapped in inorganic thin film layer from the viewpoint of the decline of barrier properties for gases caused by being bent The atomicity of the carbon atom for the sum of silicon atom, oxygen atom and carbon atom contained is than the thickness in inorganic thin film layer Continuously change on direction.Herein, the atomicity of so-called aforementioned carbon atom continuously changes than in a thickness direction, indicates for example In carbon profile above-mentioned, the atomicity of carbon atom ratio continuously occur shape repeatedly in the range of defined displacement amplitude At the increase and reduction of multiple extreme values, indicate the atomicity for not including carbon than the part discontinuously changed, the i.e. original of carbon atom Subnumber ratio will not be increased or decreased monotonously.
From the viewpoint of barrier properties for gases, bendability, preferably by the silicon distribution curve in aforementioned inorganic film layer, oxygen The atomicity ratio and carbon profile that cloth curve and carbon profile obtain meet condition (i) and (ii).
(i) atomicity of silicon is than the atomicity of the atomicity when carbon of, oxygen than the film thickness direction in aforementioned inorganic film layer 90% or more region in meet formula (5) expression condition,
Atomicity ratio > silicon atomicity ratio > carbon atomicity ratio (5) of oxygen
(ii) aforementioned carbon profile has at least one extreme value.
The carbon profile of inorganic thin film layer is preferably substantially continuous.So-called carbon profile is substantially continuous, refers to not Atomicity comprising the carbon in carbon profile is than the part that discontinuously changes.Specifically, by film thickness direction away from aforementioned The distance of inorganic thin film layer surface is denoted as x [nm], when the atomicity ratio of carbon is denoted as C, preferably satisfies formula (6).
|dC/dx|≤0.01 (6)
In addition, the carbon profile of inorganic thin film layer preferably has at least one extreme value.So-called extreme value herein refers to opposite The maximum value or minimum value of the atomicity ratio of each element for the distance away from aforementioned inorganic thin-film surface of film thickness direction. Extreme value be change film thickness direction away from aforementioned inorganic thin-film surface apart from when, element atomicity ratio switch to subtract from increase Value of the atomicity of few point or element than switching to the atomicity ratio from increased point from reduction.Extreme value for example can be based in film thickness Multiple atomicity ratios measured that locate on direction are found out.For the locating of atomicity ratio, film thickness direction Interval is for example set to 20nm or less.Show that the position of extreme value can obtain in the following manner on film thickness direction: for packet Discrete data group containing the measurement result respectively to locate, such as to the measurement knot that mutually different 3 or more locate Fruit is compared, and finds out measurement result and switchs to reduced position or switch to increased position from reduction from increasing.Show extreme value Position can also for example be obtained and carrying out differential to the curve of approximation found out by discrete data group above-mentioned.From display extreme value Position play atomicity than being increased monotonically or when the section of monotone decreasing is, for example, 20nm or more, the edge from the position of display extreme value The absolute value of the difference that film thickness direction only moves atomicity ratio and extreme value at the position of 20nm is, for example, 0.03 or more.
For the aforementioned inorganic formed in a manner of meeting condition of the carbon profile at least one extreme value as described above For film layer, incrementss of the gas permeation rate after bending for the gas permeation rate before bending and before being unsatisfactory for The case where stating condition is compared and tails off.That is, by meeting aforementioned condition, barrier properties for gases caused by capable of being inhibited because of bending The effect of decline.When forming aforementioned inorganic film layer in such a way that the number of the extreme value of carbon profile becomes 2 or more, with carbon The number of the extreme value of distribution curve is that 1 situation is compared, and incrementss above-mentioned tail off.In addition, with the extreme value of carbon profile Number when forming aforementioned inorganic film layer as 3 or more modes, the feelings that the number with the extreme value of carbon profile is 2 Condition is compared, and incrementss above-mentioned tail off.When carbon profile has 2 or more extreme values, show the position of the 1st extreme value in film thickness The position of distance, 2nd extreme value adjacent with the 1st extreme value with showing away from aforementioned inorganic thin-film surface on direction is in film thickness direction On the distance away from aforementioned inorganic thin-film surface absolute value of the difference preferably in the range of 1nm or more and 200nm or less, into one Step is preferably in the range of 1nm or more and 100nm or less.
In addition, the difference of the maxima and minima of the atomicity ratio of the carbon in the carbon profile of aforementioned inorganic film layer Absolute value is preferably 0.01 or more.It is and discontented for the aforementioned inorganic film layer formed in a manner of meeting aforementioned condition The case where sufficient aforementioned condition, is compared, the incrementss of the gas permeation rate after bending for the gas permeation rate before bending It tails off.That is, by meeting aforementioned condition, the effect of the decline of barrier properties for gases caused by capable of being inhibited because of bending.Carbon When the absolute value of the difference of the maxima and minima of atomicity ratio is 0.02 or more, effect above-mentioned is improved, when being 0.03 or more, Effect above-mentioned further increases.
It is lower, then aforementioned that there are the absolute value of the difference of the maxima and minima of the atomicity of the silicon in silicon distribution curve ratio The tendency that the barrier properties for gases of inorganic thin film layer more improves.From the viewpoint, absolute value above-mentioned is preferably smaller than 0.05 (being less than 5at%), more preferably less than 0.04 (being less than 4at%) were further preferably no larger than for 0.03 (being less than 3at%).
In addition, in oxygen carbon profile, by the atomicity ratio of the atomicity of the oxygen atom at each distance when carbon atom It is total when being denoted as " total atomicity ratio ", that there are the absolute value of the difference of the maxima and minima of total atomicity ratio is lower, The then tendency that the barrier properties for gases of aforementioned inorganic film layer more improves.From the viewpoint, total atomicity ratio above-mentioned Preferably smaller than 0.05, more preferably less than 0.04, it is further preferably no larger than 0.03.
If the composition for keeping aforementioned inorganic film layer substantially identical on aforementioned inorganic thin-film surface direction, before capable of making It states the barrier properties for gases of inorganic thin film layer uniformly and increases.So-called substantially identical composition, refers to: in oxygen distribution song It is respective in film thickness side at any 2 points of aforementioned inorganic thin-film surface in line, carbon profile and oxygen carbon profile The number of extreme value present on is identical, the difference of the maxima and minima of the atomicity ratio of the carbon in respective carbon profile Absolute value it is mutually the same or difference is within 0.05.
The inorganic thin film layer formed in a manner of meeting aforementioned condition can for example show to have used the soft of organic EL element Barrier properties for gases required by property electronic device etc..
Inorganic thin film layer comprising silicon atom, oxygen atom and carbon atom is preferably by chemical vapour deposition technique (CVD method) shape At, wherein more preferably utilize plasma chemical vapor deposition (PECVD) shape for having used glow discharge plasma etc. At.
As the example of unstrpped gas, the organo-silicon compound with silicon atom and carbon atom can be enumerated.As organosilicon The example of compound can enumerate hexamethyldisiloxane, 1,1,3,3- tetramethyl disiloxane, vinyl trimethylsilane, first Base trimethyl silane, hexamethyldisilane, methyl-monosilane, dimethylsilane, trimethyl silane, diethylsilane, propyl silane, Phenyl silane, vinyltriethoxysilane, vinyltrimethoxysilane, tetramethoxy-silicane, tetraethoxysilane, phenyl Trimethoxy silane, methyltriethoxysilane, octamethylcy-clotetrasiloxane.In these organo-silicon compound, from compound From the viewpoint of the characteristics such as the barrier properties for gases of treatability and obtained inorganic thin film layer, preferably hexamethyldisiloxane, 1,1, 3,3- tetramethyl disiloxanes.In addition, these organo-silicon compound can be used alone, or two or more can also be combined and It uses.
In addition, can suitably select that the inorganic compounds such as oxide, nitride can be formed with aforementioned raw material gas reaction Reaction gas, with aforementioned raw material gas mixing.As the reaction gas for being used to form oxide, such as oxygen, ozone can be used.Separately Outside, as the reaction gas for being used to form nitride, such as nitrogen, ammonia can be used.These reaction gas can be used alone, Or two or more can also be combined and used, such as in the case where formation nitrogen oxides, can will be used to form the reaction gas of oxide Body is applied in combination with the reaction gas for being used to form nitride.Unstrpped gas and the flow-rate ratio of reaction gas can be according to formation films The atomicity of inorganic material is adjusted than appropriate.
It can be by the flow-rate ratio of adjusting unstrpped gas and reaction gas, to control the value of aforementioned C/Si.For example, using respectively Hexamethyldisiloxane (HMDSO) as unstrpped gas, use oxygen as in the case where reaction gas, if making relative to HMDSO The ratio between oxygen flow for flow O2The range that/HMDSO is 5~25 can then control the value of C/Si in aforementioned range.
In order to supply aforementioned raw material gas to vacuum chamber, as needed, carrier gas can be used.In addition, in order to occur Plasma discharge, as needed, usable electric discharge use gas.As such carrier gas and electric discharge gas, can be suitably used The gas known, such as the rare gas such as helium, argon, neon, xenon can be used;Hydrogen.
In addition, the indoor pressure of vacuum (vacuum degree) can suitably be adjusted according to type of unstrpped gas etc., preferably 0.5~ The range of 50Pa.
Fig. 1 is workable manufacture dress in the manufacture for schematically show the inorganic thin film layer for including in gas barrier film The schematic diagram of an example set is the schematic diagram that the device of inorganic thin film layer is formed using plasma chemical vapor deposition.Fig. 1 In, in order to make figure be easy observation, change is appropriately to size, the ratio etc. of each component.Manufacture dress shown in FIG. 1 It sets with outlet roller 11, take-up roll 71, transfer roller 21~24, gas supply pipe 41, plasma generation power supply 51, forming a film The respectively arranged magnetic field forming device 61 and 62 in the inside of roller 31 and 32.In the device of Fig. 1, electricity is also doubled as at deflector roll 31 and 32 Pole becomes aftermentioned roll electrode.
It is at least inorganic thin in formation at deflector roll, gas supply pipe, magnetic field forming device in the constituent element of manufacturing device It is configured in when film layer in vacuum chamber (not shown).The vacuum chamber is connect with vacuum pump (not shown).The dynamic of vacuum pump can be passed through Make to adjust the internal pressure of vacuum chamber.
When using the device, by control plasma generation power supply, can make 2 between deflector roll space generate from The discharge plasma of the film forming gas of gas supply pipe supply can be continuously to form a film using the discharge plasma of generation Technique carries out plasma CVD film forming.
Film 100 before film forming is set with the state for being wound in outlet roller, on one side by film debatching along its length, on one side Film is sent out.In addition, film end side be arranged take-up roll, for the film obtained after being formed a film while being drawn incite somebody to action It winds and is accommodated web-like.
Aforementioned 2 are preferably oppositely disposed in a manner of extending in parallel at deflector roll.Two rollers are formed by conductive material, respectively Film is transmitted while rotating.2 at deflector roll, it is preferable to use the identical rollers of diameter, for example, it is preferable to use 5cm or more and 100cm Roller below.
For inorganic thin film layer, it is preferred that so that substrate layer is adjacent to a pair of of roll electrode respectively on one side when being formed Surface be transmitted on one side, plasma is generated between a pair of electrodes, raw material is decomposed in the plasma, thus in flexibility Inorganic thin film layer is formed on substrate.For a pair of electrodes above-mentioned, preferably with magnetic flux density in electrode and flexible substrate table The mode that face is improved configures magnetite in electrode interior.There is following tendency as a result: plasma occur when, plasma with High density is bound in electrode and flexible substrate.
(organic layer containing ultraviolet absorbing agent)
Organic layer containing ultraviolet absorbing agent is formed on inorganic thin film layer.Contained by being formed on inorganic thin film layer There is the organic layer of ultraviolet absorbing agent, that is, when gas barrier film of the invention is bonded to device, contain ultraviolet radiation absorption The organic layer of agent is formed on the outside of inorganic thin film layer, can absorb and/or obstruct electrically or electronically device, natural light as a result, The ultraviolet light for including in can inhibit the deterioration of inorganic thin film layer, device.Therefore, gas barrier film of the invention is configured to It is bonded in such a way that the organic layer containing ultraviolet absorbing agent becomes outside with device.Herein, so-called to contain ultraviolet radiation absorption The organic layer of agent is formed on " outside " of inorganic thin film layer, refers to and is bonded to layer obtained from device in gas barrier film In stack, the organic layer containing ultraviolet absorbing agent is formed on the side opposite with the face side of the lamination device of substrate layer. In addition, inorganic thin film layer is formed on also the same, the organic layer quilt containing ultraviolet absorbing agent in the case where the two sides of substrate layer It is formed on the inorganic thin film layer of the opposite side in the face being bonded with device, be preferably formed on gas barrier film and device The outermost layer of the opposite side in the face of part fitting.
Light transmittance at the 380nm of organic layer containing ultraviolet absorbing agent is preferably 20% hereinafter, more preferably 15% Hereinafter, further preferably 10% hereinafter, even more preferably be 5% or less.Light transmittance at 380nm uses spectrophotometer (Japan light splitting (strain) UV, visible light near infrared spectrometer V-670 processed) measurement.
It as ultraviolet absorbing agent, is not particularly limited, organic uv absorbers and micropowder system ultraviolet light can be enumerated Blocking agent.
As organic uv absorbers, enumerate BTA system, triazine system, acrylic, benzophenone series, amino can be enumerated Butadiene-based, salicylate system etc..
As enumerate BTA system, such as 2,2- di-2-ethylhexylphosphine oxide [- 6 [(2H- benzene of 4- (1,1,3,3- tetramethyl butyl) can be enumerated And triazole -2- base) phenol]], 2- (2H- benzotriazole -2- base) -4- (1,1,3,3- tetramethyl butyl) phenol, 2- [5- chlorine (2H)-benzotriazole -2- base] -4- methyl -6- (tert-butyl) phenol etc..
The commercially available product of representative as enumerate BTA system organic uv absorbers can enumerate Sumika Chemtex Company, Limited Sumisorb 200, Sumisorb 250, Sumisorb 300, Sumisorb 340, Sumisorb 350, Sumisorb 400, BASF AG TINUVIN PS, TINUVIN 99-2, TINUVIN 384-2,900 TINUVIN, TINUVIN 928, TINUVIN 1130, (strain) ADEKA ADK STAB LA-24, ADK STAB LA-29, ADK STAB LA-31, ADK STAB LA-32, ADK STAB LA-36 etc..(Sumisorb, TINUVIN and ADK STAB are registrar Mark.)
As triazine system, such as 2- (4,6- diphenyl -1,3,5-triazines -2- base) -5- [(hexyl) oxygroup]-benzene can be enumerated Phenol etc..
The commercially available product of representative as triazine system organic uv absorbers, can enumerate BASF AG TINUVIN 400, TINUVIN 405, TINUVIN 460, TINUVIN 477, TINUVIN 479, (strain) ADEKA ADK STAB LA-46, ADK STAB LA-F70 etc..
In addition, hindered amine etc. can be used to be used as light stabilizer.As hindered amine, for example bis- (2,2,6,6- tetramethyls can be enumerated Base -4- piperidyl) sebacate, it is poly- [[6- (1,1,3,3- tetramethyl butyl) amino -1,3,5-triazines -2,4- diyl] [(2, 2,6,6- tetramethyl -4- piperidyls) imino group] hexa-methylene [(2,2,6,6- tetramethyl -4- piperidyl) imino group]], two fourths Bis- (2,2,6,6- tetramethyl -4- piperidyl -1,6- hexamethylene diamine N- (2,2,6, the 6- tetramethyls of base amine 1,3,5-triazines N, N- Base -4- piperidyl) butylamine condensation polymer etc..
The commercially available product of representative as HALS agent, can enumerate BASF AG TINUVIN111, TINUVIN 123, TINUVIN 144, TINUVIN 292, TINUVIN 5100, (strain) ADEKA ADK STAB LA-52, ADK STAB LA- 57、ADK STAB LA-63P、ADK STAB LA-68、ADK STAB LA-72、ADK STAB LA-77、ADK STAB LA- 81, ADK STAB LA-82, ADK STAB LA-87, ADK STAB LA-402, ADK STAB LA-502 etc..
As micropowder system UV blockers, preferably particulate metal oxide, its more preferable average primary particle diameter 1~ In the range of 100nm and with ultraviolet protection effect particulate metal oxide.As metal oxide, can enumerate for example Titanium oxide, zinc oxide, cerium oxide, iron oxide, magnesia.One or more of these particulate metal oxides, preferably 2 can be combined Kind or more.
In addition, the shape as particulate metal oxide, is not particularly limited, it can be spherical, needle-shaped, rodlike, spindle Shape, indefinite shape, plate etc., in addition, about crystalline, it is not also specifically limited, can be amorphism, rutile-type, rutile titania Mine type etc..
For particulate metal oxide, preferably by existing known surface treatment, such as fluorine compounds processing, gather Siloxane treated, polyorganosiloxane resin processing, suspention processing (pendant processing), silane coupling agent processing, titanium are even Connection agent processing, finish are handled, N- is acylated lysine processing, polyacrylic acid processing, metallic soap is handled, amino acid handles, is inorganic Compound processing, corona treatment, mechanochemistry processing etc., are surface-treated in advance, particularly preferably using selected from poly- silicon One or more of oxygen alkane, silane, fluorine compounds, amino acid based compound, metallic soap surface treating agent carries out silicic acid anhydride.
The commercially available product of representative as particulate metal oxide can enumerate SUMITOMO OSAKA CEMENT Co., Ltd. HMZD-50 processed etc..
After organic layer containing ultraviolet absorbing agent preferably coating agent of the coating containing ultraviolet absorbing agent, as needed Make it dry and using the irradiation of ultraviolet light or electron beam make its solidify obtained from layer.
Coating agent containing ultraviolet absorbing agent can be containing ultraviolet absorbing agent, as resin component ultraviolet light or Monomer and/or oligomer and additive as needed, such as light of the light-cured resin of electronic beam curing resin etc The coating agent of polymerization initiator, solvent and dispersing agent etc..Coating agent containing ultraviolet absorbing agent can be by utilizing known side Ultraviolet absorbing agent and additive as needed etc. are dissolved or dispersed in resin component and obtain by method.For containing ultraviolet For aforementioned ultraviolet absorbing agent or UV blockers in the coating agent of light absorbers, in terms of adjusting ultraviolet ray transmissivity It may include amount appropriate, on the basis of the amount of the coating agent containing ultraviolet absorbing agent, preferably 0.1~50 mass % is more excellent It is selected as 1~30 mass %.
Ultra-violet solidified monomer or oligomer or electronic beam curing monomer or oligomer are not particularly limited, only If have can by the monomer or oligomer of the group that the irradiation of ultraviolet light or electron beam crosslinks can, it is preferable to use Monomer or oligomer with the group in the group being made of acryloyl group, methylacryloyl and oxetanyl. Organic layer containing ultraviolet absorbing agent will preferably make epoxy (methyl) acrylate, carbamate (methyl) acrylate (urethane (meth) acrylate), isocyanuric acid (methyl) acrylate, pentaerythrite (methyl) acrylate, three hydroxyl first It is more than 2 functions in base propane (methyl) acrylate, ethylene glycol (methyl) acrylate, polyester (methyl) acrylate etc. Macromolecule obtained from monomer with acryloyl group or methylacryloyl is crosslinked is as principal component.For these 2 officials For the monomer with acryloyl group or methylacryloyl more than energy, two or more can be mixed and used, in addition, can also It mixes (methyl) acrylate of 1 function and uses.
The commercially available product of representative as the coating agent containing ultraviolet absorbing agent can enumerate TOYO INK CO., LTD. system Lioduras (registered trademark) TYN, AICA Kogyo Co., Ltd. Z-735-27L (containing particle), (strain) ADEKA system KRX-705-6 etc..
As the forming method of the organic layer containing ultraviolet absorbing agent, can enumerate such as the method based on coating.Make For the example of the method based on coating, the various coating methods used in the past, such as spraying coating, spin coating, stick painting, curtain can be enumerated The side such as formula coating, infusion process, air doctor blade method, sliding coating, hopper coating, reverse roll coating, intaglio plate coating, extrusion coated Method.It is preferred that the coating agent containing ultraviolet absorbing agent is coated on inorganic thin film layer, then make it dry, passes through as needed The irradiation of ultraviolet light or electron beam solidify being formed.
The thickness of organic layer containing ultraviolet absorbing agent is preferably 10~10000nm.Having containing ultraviolet absorbing agent The upper limit of the thickness of machine layer is more preferably 8000nm, further preferably 7000nm.Organic layer containing ultraviolet absorbing agent The lower limit of thickness is more preferably 50nm, further preferably 100nm.In addition, for the organic layer containing ultraviolet absorbing agent For thickness, according to the ultraviolet absorbing agent, resin component or the coating agent containing ultraviolet absorbing agent etc. for being included, preferably 10~5000nm, more preferably 50~5000nm, further preferably 100~5000nm.
(organic layer B)
Gas barrier film can have organic layer B in the outermost layer of gas barrier film.Organic layer B can be made only in One face of gas barrier film, also may be formed at two sides.As organic layer B, delustring oxidant layer, protective layer, antistatic can be enumerated Layer, closely sealed improvement layer, light shield layer, anti-reflection layer, hard conating, stress relaxation layer, anti-fog layer, stain-proofing layer, is printed smoothing layer Layer and adhesive layer etc..
(gas barrier film)
For gas barrier film of the invention, the light transmittance at wavelength 380nm is 20% or less.It as a result, can be to Gas barrier film assigns light resistance, the UV for more leaning on the device inside of lower layer than gas barrier film can be inhibited to deteriorate, alternatively, energy Inhibit the UV deterioration of gas barrier film itself.Light transmittance at the wavelength 380nm of gas barrier film of the invention is preferably 15% hereinafter, more preferably 10% hereinafter, further preferably 5% or less.In the present invention, the light transmittance at wavelength 380nm makes With spectrophotometer (Japan light splitting (strain) UV, visible light near infrared spectrometer V-670 processed) measurement.
The layer structure of gas barrier film of the invention is not particularly limited, as long as stacking gradually substrate layer, inorganic thin Structure made of film layer, the organic layer containing ultraviolet absorbing agent, the example of layer structure not limited to the following.As layer knot The example of structure, specifically, can be substrate layer/inorganic thin film layer/organic layer containing ultraviolet absorbing agent three-decker; Flexible substrate/organic layer A/ inorganic thin film layer/organic layer containing ultraviolet absorbing agent, organic layer A/ flexible substrate/inorganic thin Film layer/the organic layer containing ultraviolet absorbing agent, inorganic thin film layer/flexible substrate/inorganic thin film layer/contain ultraviolet absorbing agent Organic layer, the flexible substrate/inorganic thin film layer/organic layer containing ultraviolet absorbing agent/organic layer B, organic layer B/ flexibility base 4 layers of structure of material/inorganic thin film layer/organic layer containing ultraviolet absorbing agent;Flexible substrate/organic layer A/ inorganic thin film layer/ Organic layer containing ultraviolet absorbing agent/organic layer B, inorganic thin film layer/flexible substrate/organic layer A/ inorganic thin film layer/contain 5 layers of structure such as organic layer of ultraviolet absorbing agent;Organic layer B/ inorganic thin film layer/flexible substrate/organic layer A/ inorganic thin film layer/ Organic layer containing ultraviolet absorbing agent, inorganic thin film layer/organic layer A/ flexible substrate/organic layer A/ inorganic thin film layer/contain The organic layer of ultraviolet absorbing agent, inorganic thin film layer/organic layer A/ flexible substrate/organic layer A/ inorganic thin film layer/containing ultraviolet The organic layer of light absorbers/organic layer B, organic layer B/ inorganic thin film layer/organic layer A/ flexible substrate/organic layer A/ inorganic thin film Layer/the organic layer containing ultraviolet absorbing agent, organic layer B/ inorganic thin film layer/organic layer A/ flexible substrate/organic layer A/ are inorganic The structure of 6 layers or more of the film layer/organic layer containing ultraviolet absorbing agent/organic layer B etc..It, can be with other than layer above-mentioned Further there is layer C.As such layer C, such as organic layer containing colorant can be enumerated, anti-exudation layer, anti-reflection layer, glued Close layer, transparency conducting layer, infrared ray blocking layer, vacuum ultraviolet solidification organic layer etc..
Static friction system for gas barrier film, between a surface of gas barrier film and another surface Number is 0.85 or more and 2.0 or less.
For confficient of static friction, the gas barrier film with the upper surface and the lower surface is divided into 2, so that the The upper surface of 1 gas barrier film and the mode of the following table face contact of the 2nd gas barrier film measure confficient of static friction i.e. It can.Confficient of static friction can be surveyed according to the gradient method of JIS P 8147, in the environment of temperature is 23 DEG C, humidity is 50RH% It is fixed.
In order to adjust confficient of static friction, the surface roughness on the two sides of regulating gas barrier film.For example, inorganic thin In the case that film layer is arranged on the only one face of substrate layer, the surface roughness and base of the exposed surface of inorganic thin film layer are adjusted The surface roughness of the exposed surface of material layer.In the case that inorganic thin film layer is arranged on two faces of substrate layer, one is adjusted The surface roughness of exposed surface of the inorganic thin film layer of the surface roughness and another party of the exposed surface of the inorganic thin film layer of side is It can.If increasing the surface roughness at least one face of gas barrier film, there are the confficients of static friction between surface back side to subtract Small tendency.
The surface roughness of inorganic thin film layer for example can be according to the indoor pressure of vacuum under the membrance casting condition of inorganic thin film layer The conditions such as power (vacuum degree), film forming thickness, inorganic film forming layer composition and change.In addition, the surface of inorganic thin film layer is thick Rugosity can also by adjust the surface roughness for the flexible substrate for becoming substrate, be configured in inorganic thin film layer and flexible substrate it Between the surface roughness of middle layer adjust.
In order to adjust the surface roughness of flexible substrate, the processing such as sided corona treatment is carried out.
The arithmetic average roughness Ra on the surface of inorganic thin film layer can be 3nm or more.Arithmetic average roughness Ra can lead to It crosses following manner to obtain: gas barrier film is fitted in into the epoxy substrate with adhesive, then with white interference microscope Its surface is observed.So-called arithmetic average roughness Ra, refers to the arithmetic mean roughness based on JIS B 0601: 2001 Degree.
In addition, in gas barrier film of the present embodiment, by the 50mm square cut out from gas barrier film When part is loaded with the central portion of the part and the tangent mode of horizontal plane, the average value of the distance of horizontal plane to the quadrangle upwarped For 2mm or less.
The average value can measure in the following way.Firstly, being kept under conditions of temperature is 23 DEG C, humidity is 50RH% Gas barrier film 48 hours.Next, cutting out the part of 50mm square from the gas barrier film, sample is obtained.With sample Central portion and the tangent mode of horizontal plane, sample is placed on horizontal plane, obtain total 4 horizontal planes to quadrangle away from From.Finally, obtaining the average value of above-mentioned 4 distances.
In order to reduce the warpage of gas barrier film to improve flatness, each inorganic thin film layer of surface back side can be made Stress equilibrium, perhaps make the stress equilibrium of the inorganic thin film layer in a face and coat below or reduce inorganic thin The residual stress of film layer itself, or combine them, make the stress equilibrium on two sides.When stress can be formed by inorganic thin film layer Film pressure, film thickness, coat formation when cure shrinkage degree etc. adjust.
Steam permeability of gas barrier film under the conditions of 40 DEG C, 90%RH can be 0.1g/m2/ day is hereinafter, can Think 0.001g/m2Below/day.Steam permeability can according to ISO/WD 15106-7 (Annex C), utilize Ca corrosion test Method measures.
Gas barrier film of the invention can be by manufacturing substrate layer, inorganic thin film layer respectively and containing ultraviolet absorbing agent Organic layer and be bonded method, inorganic thin film layer and the organic layer containing ultraviolet absorbing agent are formed on substrate layer Method etc. manufactures.Inorganic thin film layer preferably by using glow discharge plasma, utilize vacuum film formation known to CVD method etc. Method in flexible substrate or be laminated on the organic layer A on flexible substrate surface formed to manufacture.Known side can also be used Method forms the organic layer containing ultraviolet absorbing agent, organic layer B in addition on the stacked film obtained as described above.It is inorganic Film layer preferably passes through continuous film-forming process and is formed, for example, the substrate of strip is more preferably continuously transmitted on one side, on one side at it On be continuously formed inorganic thin film layer.Specifically, take-up roll, monogon can be sent to from outlet roller for flexible substrate on one side At inorganic thin film layer.Then, substrate can be inversely transmitted, thus further from top by inverting outlet roller and take-up roll Form inorganic thin film layer.
Gas barrier film of the invention is the film of barrier properties for gases and excellent in light-resistance, even if especially trying in light resistance Make in its curved situation after testing, the decline of barrier properties for gases is also inhibited.Gas barrier film of the invention can be used for There must be the packaging applicationss of barrier properties for gases, food, industrial goods, pharmaceuticals etc..In addition, the present invention also provides have this The flexible electronic device of the gas barrier film of invention.Gas barrier film of the invention also can be used as more demanding gas resistance Every the soft of the flexible electronic devices such as liquid crystal display element, solar battery and organic el display of property (such as flexible display) Property substrate use.Using gas barrier film of the invention as the flexible base board of electronic device in use, can be in the present invention Gas barrier film on directly form element, in addition, element can also be formed on other substrates, be then superimposed on this from top The gas barrier film of invention.
Hereinafter, illustrating the present invention in further detail by specific embodiment.
Embodiment
<film thickness of inorganic thin film layer, organic layer A and the organic layer containing ultraviolet absorbing agent>
Inorganic thin film layer, organic layer A or the organic layer containing ultraviolet absorbing agent are formed in flexible substrate, are used (strain) Small slope studies made Surfcorder ET200, and the difference of height measurement in do not formed a film portion and film forming portion finds out the film thickness of each layer (T)。
<the thickness direction XPS depth profiling of inorganic thin film layer measures>
The atomicity ratio of the thickness direction of the inorganic thin film layer of gas barrier film is surveyed using X-ray photoelectron spectroscopy It is fixed.
Etch ion type: argon (Ar+)
Etch-rate (SiO2Heat oxide film scaled value): 0.05nm/sec
Etching interval (SiO2Scaled value): 10nm
X-ray photoelectron spectroscopy device: Thermo Fisher Scientific corporation, type designation " VG Theta Probe”
X-ray irradiation: monocrystalline is divided AlK α
The hot spot and its size of X-ray: the ellipse of 800 400 μm of μ ms.
<infrared spectrum measurement (ATR method) of inorganic thin film layer surface>
In the infrared spectrum measurement of the inorganic thin film layer surface of stacked film, use germanium crystal as prism using having Fourier transformation type infrared spectrophotometer (Japan's light splitting (strain) system, the FT/IR- of ATR attachment (PIKE MIRacle) 460Plus) it is measured.It should be noted that by using the cyclic annular cycloolefin film (Japan as flexible substrate ZEONCORPORATION system, Zeonor ZF 16) it is used as substrate, inorganic thin film layer is formed in aforementioned substrates, to obtain red The stacked film of external spectrum measurement.
<barrier properties for gases>
Under conditions of temperature is 40 DEG C, humidity is 90%RH, calcium etch (Japanese Unexamined Patent Publication 2005-283561 is utilized The method recorded in bulletin) measurement barrier properties for gases, find out the steam permeability of gas barrier film.
(Production Example 1 of inorganic thin film layer)
Flexible substrate is installed on the indoor outlet roller of vacuum, makes to become 1 × 10 in vacuum chamber-3Then Pa is hereinafter, scratching Property substrate on carry out inorganic thin film layer film forming.In the plasma CVD equipment used to form inorganic thin film layer, one While be adjacent to substrate layer respectively in a pair of of roll electrode surface transmits substrate layer on one side, make to generate plasma between a pair of electrodes, Make raw material decomposes in plasma, forms inorganic thin film layer in flexible substrate.For a pair of electrodes above-mentioned, with magnetic flux The mode that density is got higher in electrode and flexible substrate surface in electrode interior configured with magnetite, when plasma generates, wait from Daughter is strapped in high-density in electrode and flexible substrate.When carrying out the film forming of inorganic thin film layer, the film-forming region Xiang Chengwei Interelectrode space in import hexamethyldisiloxane gas 100sccm (Standard Cubic Centimeter per Minute (standard milliliters per minute), 0 DEG C, 1 standard atmospheric pressure), oxygen 1400sccm, to supplying 1.2kW, frequency between electrode roller The alternating current of rate 70kHz, is discharged and generates plasma.Next, with the pressure near the indoor exhaust outlet of vacuum at Capacity is adjusted for the mode of 5Pa, then forms fine and close inorganic thin film layer in flexible substrate using plasma CVD method.
For the inorganic thin film layer of obtained gas barrier film, infrared spectrum measurement is carried out under the foregoing conditions.By To infrared absorption spectrum find out in 950~1050cm-1Locate existing peak intensity (I1) and in 1240~1290cm-1Place exists Peak intensity (I2) absorption intensity ratio (I2/I1) when, I2/I1=0.04.In addition, finding out in 950~1050cm-1Existing for place Peak intensity (I1) and in 770~830cm-1Locate existing peak intensity (I3) absorption intensity ratio (I3/I1) when, I3/I1=0.40.
In addition, finding out in 770~830cm-1Locate existing peak intensity (I3) and in 870~910cm-1Locate existing peak intensity Spend (I4) absorption intensity ratio (I4/I3) when, I4/I3=0.88.
It should be noted that do not change implementing aftermentioned sided corona treatment for infrared absorption spectrum, Show absorption intensity ratio above-mentioned.For obtained gas barrier film 1, the 90% of the film thickness direction of inorganic thin film layer In above region, sequence from atomicity is than a big side as oxygen, silicon and carbon, in addition, with 10 or more film thickness side To carbon profile extreme value, and the difference of the maxima and minima of the atomicity ratio of the carbon in carbon profile is absolute Value is 0.02 or more.
It is found out in addition, carrying out the measurement of XPS depth profiling by the distribution curve of obtained silicon atom, oxygen atom and carbon atom Then the average atomic concentration of each atom in a thickness direction calculates average atom number ratio C/Si and O/Si, as a result, average original Subnumber ratio C/Si=0.27, O/Si=1.76.
The obtained inorganic thin film layer in gas barrier film with a thickness of 320nm.
(Production Example 2 of inorganic thin film layer)
The supply amount 900sccm for making oxygen, the alternating current 0.6kW for making to supply between electrode roller, it is indoor with vacuum Pressure near exhaust outlet adjusts capacity as the mode of 1Pa, in addition to this, operates in the same way with Production Example 1, in substrate layer Upper formation inorganic thin film layer.
For the inorganic thin film layer of obtained gas barrier film, infrared spectrum measurement is carried out under the foregoing conditions.By To infrared absorption spectrum find out in 950~1050cm-1Locate existing peak intensity (I1) and in 1240~1290cm-1Place exists Peak intensity (I2) absorption intensity ratio (I2/I1) when, I2/I1=0.03.In addition, finding out in 950~1050cm-1Existing for place Peak intensity (I1) and in 770~830cm-1Locate existing peak intensity (I3) absorption intensity ratio (I3/I1) when, I3/I1=0.36.
In addition, finding out in 770~830cm-1Locate existing peak intensity (I3) and in 870~910cm-1Locate existing peak intensity Spend (I4) absorption intensity ratio (I4/I3) when, I4/I3=0.84.
It should be noted that do not change implementing aftermentioned sided corona treatment for infrared absorption spectrum, Show absorption intensity ratio above-mentioned.For obtained gas barrier film 1, the 90% of the film thickness direction of inorganic thin film layer In above region, sequence from atomicity is than a big side as oxygen, silicon and carbon, in addition, with 10 or more film thickness side To carbon profile extreme value, and the difference of the maxima and minima of the atomicity ratio of the carbon in carbon profile is absolute Value is 0.02 or more.
It is found out in addition, carrying out the measurement of XPS depth profiling by the distribution curve of obtained silicon atom, oxygen atom and carbon atom Then the average atomic concentration of each atom in a thickness direction calculates average atom number ratio C/Si and O/Si, as a result, average original Subnumber ratio C/Si=0.30, O/Si=1.73.
The obtained inorganic thin film layer in gas barrier film with a thickness of 250nm.
(embodiment 1)
Implement on cyclo-olefin-polymer films (COP film, Japanese ZEON CORPORATION system, ZF16, with a thickness of 100 μm) Then sided corona treatment is coated with coating agent 1 (TOYOCHEM CO., LTD. system, LIODURAS (registered trademark) using gravure coating process TYAB500LC3NS contains particle), it is 500mJ/cm in accumulated light after 100 DEG C of progress drying in 3 minutes2Under conditions of into Row ultraviolet light irradiates (USHIO INC. system, SP-9), forms slippery layer as the organic layer A1 with a thickness of 1.5 μm.Next, Implement sided corona treatment on the COP substrate of the opposite side of the coated face of organic layer A1, then, is coated with and is coated using gravure coating process Agent 2 (East Asia synthesizes (strain) system, ARONIX (registered trademark) UV3701), after 100 DEG C of progress drying in 3 minutes, in accumulated light For 500mJ/cm2Under conditions of carry out ultraviolet light irradiation, form planarization layer as the organic layer A2 with a thickness of 1.8 μm, obtain To flexible substrate.
On the organic layer A1 of obtained flexible substrate, inorganic thin film layer is formed under conditions of Production Example 1, in organic layer On A2, inorganic thin film layer is formed under conditions of Production Example 2.Next, in the organic layer A1 for the film for foring inorganic thin film layer In the most surface of side, the organic layer containing ultraviolet absorbing agent is formed, manufactures gas barrier film.Contain ultraviolet absorbing agent In the formation of organic layer, sided corona treatment is carried out to the slippery layer surface side for the film for foring inorganic thin film layer and is then applied using wet type Cloth method is coated with coating agent 3 ((strain) ADEKA system, KRX-705-6) 500mJ/cm2Under conditions of carry out ultraviolet light irradiation (USHIO INC. system, SP-9), formed with a thickness of 5.5 μm containing ultraviolet The organic layer of light absorbers.
In addition, temperature is 40 DEG C, the humidity of low humidity side is 0%RH, high humility side in obtained gas barrier film Steam permeability under conditions of humidity is 90%RH is 2 × 10-3g/(m2It).
(embodiment 2)
Make the organic layer containing ultraviolet absorbing agent with a thickness of 6.5 μm, in addition to this, operate similarly with example 1, Manufacture gas barrier film.
In addition, temperature is 40 DEG C, the humidity of low humidity side is 0%RH, high humility side in obtained gas barrier film Steam permeability under conditions of humidity is 90%RH is 2 × 10-3g/(m2It).
(comparative example 1)
It is real on COP film (Japanese ZEON CORPORATION system, Zeonor (registered trademark) ZF 16, with a thickness of 100 μm) Sided corona treatment is applied, then (AICA Kogyo Co., Ltd. system, Z-735-27L contain using gravure coating process coating coating agent 4 Particle), it is 150mJ/cm in accumulated light after 100 DEG C of progress drying in 2 minutes2Under conditions of carry out ultraviolet light irradiation, formed With a thickness of 3.5 μm of the organic layers for containing ultraviolet absorbing agent as slippery layer.Next, in having containing ultraviolet absorbing agent Implement sided corona treatment on the COP substrate of the opposite side of the coated face of machine layer, then utilizes gravure coating process coating coating agent 2 (east Asia synthesis (strain) system, ARONIX (registered trademark) UV3701), after 100 DEG C of progress drying in 3 minutes, be in accumulated light 500mJ/cm2Under conditions of carry out ultraviolet light irradiation, form planarization layer as the organic layer A2 with a thickness of 1.8 μm.
On the organic layer containing ultraviolet absorbing agent of obtained substrate, formed under conditions of Production Example 1 inorganic thin Film layer forms inorganic thin film layer on organic layer A2 under conditions of Production Example 2, manufactures gas barrier film.
(comparative example 2)
Make the organic layer containing UV protection absorbent with a thickness of 4.5 μm, in addition to this, operated in the same way with comparative example 1, Manufacture gas barrier film.
(comparative example 3)
In addition to this not formed organic layer containing ultraviolet absorbing agent operates similarly with example 1, manufacture gas Barrier film.
For gas barrier film obtained in Examples 1 to 2 and comparative example 1~3, using spectrophotometer, (day is well-behaved Light (strain) UV, visible light near infrared spectrometer V-670 processed), measure the light transmittance (Tt) at 380nm.Obtained result is shown In table 1.
By gas barrier film obtained in Examples 1 to 2 and comparative example 1~3 temperature be 40 DEG C, illumination 765W/ m2Light fastness test machine (DAIPLA WINTES CO., LTD. system, SWM-03F) in place 168 hours, thus carry out fast light Property test.Gas barrier film is configured in such a way that light is from the incidence of the slippery layer surface side of gas barrier film to be tested.
It, will be on the mandrel that radius is 4mm after 1 circle of winding in addition, for the gas barrier film after light fastness test The deteriorations such as not peeling-off on barrier layer, crackle, coloring, appearance do not occur the area changed be 100% the case where be evaluated as " A ", appearance is not occurred the area changed be 80% more than and less than 100% the case where be evaluated as " B ", appearance is not become The case where area of change is less than 80% is evaluated as " C ".It the results are shown in table 1.
[table 1]
As shown in table 1 like that, for gas barrier film of the invention shown in the embodiment 1 and 2, due to inorganic There is the organic layer containing ultraviolet absorbing agent, therefore, even if inorganic thin film layer is not also sent out after light fastness test in film layer Raw deterioration, has adaptation after good bending.For comparative example 1 and 2, although the light transmittance at wavelength 380nm is low, After light fastness test, inorganic thin film layer is deteriorated, and adaptation is low after bending.Accordingly, it is to be understood that gas of the invention hinders It can suitably be used in the devices such as display device every property film.
Description of symbols
11 outlet rollers
21,22,23,24 transfer roller
31,32 one-tenth deflector rolls
41 gas supply pipes
51 plasma power supplys
61,62 field generator for magnetic
71 take-up rolls
100 films

Claims (11)

1. gas barrier film successively has the substrate layer including at least flexible substrate, inorganic thin film layer, inhales containing ultraviolet light Receive the organic layer of agent, wherein
The inorganic thin film layer contains silicon atom, oxygen atom and carbon atom,
Light transmittance at the 380nm of the gas barrier film is 20% or less.
2. gas barrier film as described in claim 1, wherein be in opposite with the organic layer side containing ultraviolet absorbing agent The surface of the substrate layer of side has other inorganic thin film layer.
3. gas barrier film as claimed in claim 1 or 2, wherein in substrate layer, at least one surface of flexible substrate With organic layer A.
4. gas barrier film according to any one of claims 1 to 3, wherein organic layer A is selected from by slippery layer and flat Layer in the group of smooth layer composition.
5. gas barrier film as described in any one of claims 1 to 4, wherein the phase for including in the inorganic thin film layer The atomicity of carbon atom for the sum of silicon atom, oxygen atom and carbon atom is than on the thickness direction of inorganic thin film layer Continuously change.
6. such as gas barrier film according to any one of claims 1 to 5, wherein for the inorganic thin film layer, nothing The average atom number ratio of the carbon atom (C) for silicon atom (Si) in machine film layer in the range of formula (1),
0.10 < C/Si < 0.50 (1).
7. such as gas barrier film according to any one of claims 1 to 6, wherein respectively indicating the inorganic thin film layer Film thickness direction the distance away from the inorganic thin film layer surface, opposite with include in the inorganic thin film layer at each distance The atomicity of silicon for the sum of silicon atom, oxygen atom and carbon atom than, oxygen atomicity than between the atomicity ratio of, carbon The silicon distribution curve of relationship, in oxygen distribution curve and carbon profile, meet condition (i) and (ii),
(i) atomicity of silicon is than the atomicity of the atomicity when carbon of, oxygen than the film thickness direction in the inorganic thin film layer Meet the condition of formula (5) expression in 90% or more region,
The atomicity ratio (5) of the atomicity ratio > carbon of the atomicity ratio > silicon of oxygen
(ii) carbon profile has at least one extreme value.
8. device, comprising any in claim 1~7 in such a way that the coat containing ultraviolet absorbing agent becomes outermost Gas barrier film described in.
9. such as gas barrier film according to any one of claims 1 to 7, wherein utilize the ATR method pair of infrared spectrum measurement When the surface of the inorganic thin film layer is measured, in 950~1050cm-1Locate existing peak intensity (I1), with 1240~ 1290cm-1Locate existing peak intensity (I2) intensity ratio in the range of formula (2),
0.01≤I2/I1< 0.05 (2).
10. the gas barrier film as described in any one of claim 1~7 and 9, wherein utilize the ATR of infrared spectrum measurement When method is measured the inorganic thin film layer surface, in 950~1050cm-1Locate existing peak intensity (I1), with 770~ 830cm-1Locate existing peak intensity (I3) intensity ratio in the range of formula (3),
0.25≤I3/I1≤0.50 (3)。
11. the gas barrier film as described in any one of claim 1~7,9 and 10, wherein utilize infrared spectrum measurement When ATR method is measured the inorganic thin film layer surface, in 770~830cm-1Locate existing peak intensity (I3), with 870~ 910cm-1Locate existing peak intensity (I4) intensity ratio in the range of formula (4),
0.70≤I4/I3< 1.00 (4).
CN201780065240.1A 2016-11-11 2017-11-06 Gas barrier film and device comprising it Pending CN109890607A (en)

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Application publication date: 20190614